Home / 105,132.92-145,082.22-57,385.88

Finding the Fourth Proportional to 105,132.92, 145,082.22 and 57,385.88

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Solution

The fourth proportional to 105,132.92, 145,082.22 and 57,385.88 is: 79,191.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,132.92 : 145,082.22 = 57,385.88 : x
  2. Step 2: Convert to fraction form
    105,132.92/145,082.22 = 57,385.88/x
  3. Step 3: Cross multiply
    105,132.92x = 145,082.22 × 57,385.88
  4. Step 4: Simplify right side
    105,132.92x = 8,325,670,867.05
  5. Step 5: Solve for x
    x = 8,325,670,867.05/105,132.92
  6. Step 6: Final answer
    x = 79,191.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.